n' number of plug flow reactors (P.F.R) in series with a total volume 'V' gives the same conversion as one P.F.R. of volume 1/V V V.n V/n TRUE ANSWER : ? YOUR ANSWER : ?
A plug-flow reactor is characterised by Presence of lateral mixing Constant composition and temperature of reaction mixture Presence of axial mixing High capacity TRUE ANSWER : ? YOUR ANSWER : ?
A batch reactor is characterised by Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume Constant residence time TRUE ANSWER : ? YOUR ANSWER : ?
Chemical reaction rate of a component depends upon the All of these Pressure of the system Composition of the component only Temperature of the system TRUE ANSWER : ? YOUR ANSWER : ?
From among the following, choose one which is not an exothermic process. Ammonia synthesis Methanol synthesis Oxidation of sulphur Catalytic cracking TRUE ANSWER : ? YOUR ANSWER : ?
Half-life period for a first order reaction is __________ the initial concentration of the reactant. Independent of Directly proportional to Inversely proportional to None of these TRUE ANSWER : ? YOUR ANSWER : ?
With increase in initial concentration, the fractional conversion of a first order reaction in a given time Decreases Remains constant Increases Unpredictable TRUE ANSWER : ? YOUR ANSWER : ?
In a semi-batch reactor Both the reactants flow counter-currently Residence time is constant Velocity of reaction can be controlled Maximum conversion can be controlled TRUE ANSWER : ? YOUR ANSWER : ?
With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be Higher in P.F. reactor Data insufficient; can't be predicted Same in both the reactors Higher in CSTR TRUE ANSWER : ? YOUR ANSWER : ?
Most important characteristics of gas-liquid reactors are the Specific inter-facial area Both A and B Liquid hold-up None of these TRUE ANSWER : ? YOUR ANSWER : ?